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How GM engineers are using diaper 'snow' to keep you warm

Testing how snow affects General Motors' vehicles isn't really a problem right now for the company's engineers, but in the dog days of summer the process isn't exactly easy. The only real option is for them to book time at the automaker's climatic wind tunnel. However, a flash of brilliance from an engineer allows snow to be simulated regardless of the temperature outside, and the discovery is all because of his daughter's wet diaper. The realization came to GM Thermal Systems engineer Nicholas Jahn while he was swimming with his daughter and noticed how her diaper ballooned in size in the water. He found out the substance that makes this possible is called sodium polyacrylate. When the material gets wet it grows and forms fluffy flakes that are a close imitation of snow. Best of all, the stuff can be prepared easily any time of the year, and it's reusable. The engineering team uses the material to test the effectiveness of the heating systems of GM's vehicles. They spread the sodium polyacrylate over the inlets at the base of the windshield to obstruct the airflow and then crank the heater. After some time, they can see how much is being sucked into the system and design more efficient systems in the future. See how the process works in the video above and read about the diaper discovery in GM's press release below. Diapers Change Chevy Cruze Winter Warm-up Time GM validation engineer uses diaper material "snow" to reduce frigid drives 2015-01-06 DETROIT – An item commonly found on an infant's changing table is helping General Motors' engineers simulate snow year round, ensuring heating systems in cars like the 2015 Chevrolet Cruze can quickly and efficiently warm its interior. Packed snow can prevent air from entering the inlet panel at the bottom of the windshield, obstructing the flow of air into the heating system and reducing the amount of air it can push out. This can lead to less efficient warming of the car's interior and windshield defrosting. "The last thing anyone wants to do when it's freezing cold out is scrape their windshield," said Nicholas Jahn, GM Vehicle Thermal Systems engineer. "The testing we perform on the Chevrolet Cruze with the diaper material allows us to maximize the car's heating capabilities." Ironically, Jahn stumbled upon his diaper-based testing method in the middle of summer. During a swim with his daughter, he noticed her diaper multiplied in size when it came into contact with water.

2015 Chevy Colorado gets its GearOn before Chicago

Complementing the Chevrolet Silverado Midnight Edition at the 2015 Chicago Auto Show is this, the 2015 Colorado GearOn Edition, which as the name might suggest, takes full advantage of the company's truck accessory catalog. Available on the volume LT trim and in both crew and extended cab varieties and with both the short and long-bed options, the GearOn Edition adds plenty of nifty extras designed to increase the truck's versatility and help accommodate bikes, kayaks and other outdoorsy items. The GearOn bars package, divider package and tie-down rings are supplemented an "EZ" lift and lower tailgate, side steps, gloss black 18-inch wheels, a body color grille, and blacked-out Chevy badges. And although it's not specifically called out in the attached press release, the paint on this special edition looks different than anything else in the truck's catalog. We dig it, especially with the black accents. Prices, meanwhile, start at $31,250, which is not even $1,200 more than a Colorado Extended Cab LT 4x4. We'll have more on the Colorado GearOn when it makes its debut later this week at the 2015 Chicago Auto Show, including live images to add to the pair of stocks distributed by Chevy. Until then, scroll down for the press release on the limited-edition truck. Chevy Colorado GearOn™ Edition Brings More Adventure Versatile accessories package maximizes cargo capability; enables more fun DETROIT – Chevrolet today introduced the 2015 Colorado GearOn™ Special Edition, which blends the capability of the all-new midsize pickup truck with the versatility of the GearOn accessory system – and additional popular features. It makes its public debut Feb. 13-22 at the Chicago Auto Show. The Colorado GearOn Special Edition goes on sale this spring with a starting price of $31,250. It's offered on LT models in extended or crew cab configurations, with the long or short cargo bed and available 4WD. "Chevrolet Colorado answers the call for customers who have passions of all types and the GearOn accessory system enables them to bring more adventure wherever they go," said Tony Johnson, Colorado marketing manager. "And with Colorado offering segment-leading efficiency and capabilities, it's a combination that maximizes adventure without compromise." The GearOn accessory system is designed for easy configuration with a multitude of mounting accessories for everything from bikes, kayaks, skis and stand-up paddle boards to a bed-mounted tent.

GM workers in Oshawa walk out in protest of plant closure

TORONTO/MONTREAL – Canadian Prime Minister Justin Trudeau on Monday expressed his "deep disappointment" in General Motors' decision to close its Oshawa plant, a move Canadian officials only learned about on Sunday and which led workers to walk off the job on Monday. GM said the closure affects a total of 2,973 assembly line jobs. GM's total employment in Canada is 8,150 direct jobs. Workers in the Unifor trade union walked out of the Oshawa plant "in protest," ahead of a meeting with GM about the announcement, a union spokeswoman said. "I've moved my family twice for this company and they do this to me," a tearful worker told CBC TV as he left the plant. Currently, the Oshawa plant builds the Cadillac XTS and Chevy Impala sedans. Under Unifor's four-year contract signed in 2016, GM must give the union a year's notice before closing the plant. The automaker intends to close the plant in December, 2019. A 2015 study commissioned by Unifor, which represents GM employees, estimated that shutting the plant would eliminate 4,100 direct jobs and reduce Ontario's gross domestic product by C$1.1 billion. But Jerry Dias, president of Unifor, said the move amounts to a breach of the automaker's contract with its employees. "We have a collective agreement that says they're not closing any of our facilities ... so we will do anything by any means to make sure that they live up to their word," Dias said at a news conference. Dias said the contract between Unifor and the company forbids GM from closing any of its Canadian plants during the contract period, which ends in September 2020. "They are not closing our damn plant without one hell of a fight." Canadian officials promised to aid auto workers affected by the 2019 closure, part of a wider restructuring by the automaker that will cut production of slow-selling models and slash its North American workforce. "I spoke with GM (CEO) Mary Barra to express my deep disappointment in the closure," Trudeau tweeted on Monday. "We'll do everything we can to help the families affected by this news get back on their feet." GM workers have been part of the heart and soul of Oshawa for generations - and we'll do everything we can to help the families affected by this news get back on their feet. Yesterday, I spoke with @GM's Mary Barra to express my deep disappointment in the closure.